MESON Chess Problem Database

Problem Display
PID: 186975 (K6Q/8/1Rnp4/3knN2/1P1N4/7R/2P4B/8 w - - 0 1)

Denes, Geczi

Suomen Shakki, 1981

K6Q/8/1Rnp4/3knN2/1P1N4/7R/2P4B/8

#2

9 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Rb5+?
      • 1...Ke4
        • 2.Re3#
      • 1...Kc4!
    • 1.Qg8+?
      • 1...Ke4
        • 2.Re3#
      • 1...Sf7!
  • Keys
    • 1.Sxd6!
      • 1...Kxd4
        • 2.Rd3#
      • 1...Kxd6
        • 2.Qd8#
      • 1...Sxb4
        • 2.Qxe5#
      • 1...Sxd4
        • 2.Qxe5#
      • 1...Sd3
        • 2.c4#
      • 1...Sf3
        • 2.Rb5#
        • 2.c4#
      • 1...Sc4
        • 2.Rb5#
      • 1...Sg4
        • 2.Rb5#
        • 2.c4#
      • 1...Sg6
        • 2.Rb5#
        • 2.c4#
      • 1...Sd7
        • 2.c4#
      • 1...Sf7
        • 2.Rb5#
        • 2.c4#
      • 1...Sa5
        • 2.Qxe5#
      • 1...Sa7
        • 2.Qxe5#
      • 1...Se7
        • 2.Qxe5#
      • 1...Sb8
        • 2.Qxe5#
      • 1...Sd8
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(I);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(C)
      • Refutation
        • S(b);P_SPINS(b)
  • Actual
    • S(F);XP(d)
    • Vars
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XS(E)::R1(C)
      • K(a);OGATEB,P-FLIGHT,P_SPINS(b),XS(F)::QAR2(I)
      • S(c);N_GUARD,XP(D)::QAR1(I),XS(b)
      • S(c);N_GUARD,XS(E)::QAR1(I),XS(b)
      • S(b);N_GUARD::P(A)
      • S(b);::R(G)
      • S(c);N_GUARD::QAR1(I),XS(b)
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